Papers
Papers
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2025
51. Title: Optically driven spin angular momentum transport in paramagnetic insulator NiO
Authors: Kyung-Hun Ko, Gyung-Min Choi*
Journal: Physical Review B, 11, 134422 (2025)
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.111.134422
50. Title: Surface-sensitive magneto-optical detection of nonequilibrium spins and orbitals
Authors: Gyung-Min Choi*, Jieun Lee
Journal: Journal of Physics D: Applied Physics, 58, 133004 (2025)
49. Title: Spin-torque-driven gigahertz magnetization dynamics in the non-collinear antiferromagnet Mn3Sn
Authors: Won-Bin Lee, Seongmun Hwang, Hye-Won Ko, Byong-Guk Park, Kyung-Jin Lee*, Gyung-Min Choi*
Journal: Nature Nanotechnology, 20, 487 (2025)
2024
48. Title: Orbital-to-spin Conversion in Ti/Pt/CoFeB Trilayer Structures
Authors: Kyung-Hun Ko, Gyung-Min Choi*
Journal: Journal of the Korean Magnetics Society, 34, 294 (2024)
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE12019406&language=en_US&hasTopBanner=true
47. Title: Spin-orbit torque with spin and orbital generation in Pt, Mn, and Pt0.5Mn0.5
Authors: Sumin Kim, Gyung-Min Choi*
Journal: Current Applied Physics, 68, 26 (2024)
https://www.sciencedirect.com/science/article/pii/S1567173924001871?via%3Dihub
46. Title: Spintronics meets orbitronics: Emergence of orbital angular momentum in solids
Authors: Daegeun Jo, Dongwook Go, Gyung-Min Choi, Hyun-Woo Lee
Journal: npj Spintronics, 2:19 (2024)
45. Title: Optical detection of spin-orbit torque in Ta/CoFeB and W/CoFeB bilayers
Authors: Sumin Kim, Byung Kwon Kong, Tae Wook Kim, Gyung-Min Choi*
Journal: Current Applied Physics, 61, 1 (2024)
https://www.sciencedirect.com/science/article/pii/S1567173924000233?via%3Dihub
2023
44. Title: Spintronics Research Using Magneto-optic Effect
Authors: Gyung-Min Choi
Journal: Journal of the Korean Magnetics Society, 33, 261 (2023)
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE11645878&language=ko_KR&hasTopBanner=true
43. Title: Engineering electrode interfaces for telecom-band photodetection in MoS2/Au heterostructures via sub-band light absorption
Authors: Chengyun Hong, Saejin Oh, Vu Khac Dat, Sangyeon Pak, SeungNam Cha, Kyung-Hun Ko, Gyung-Min Choi, Tony Low, Sang-Hyun Oh, and Ji-Hee Kim
Journal: Light: Science & Applications, 12, 280 (2023)
42. Title: Ferromagnetic material dependence of spin-orbit torque in PtMn/ferromagnet bilayer
Authors: Ngoc Luu Ly Pham, Kyung-Hun Ko, and Gyung-Min Choi*
Journal: Applied Physics Letters, 123, 162402 (2023)
41. Title: Giant Spin-Orbit Torque in Sputter-Deposited Bi Films
Authors: Sumin Kim, Hyun-Woo Lee, and Gyung-Min Choi*
Journal: Advanced Science, 10, 2303831 (2023)
40. Title: Observation of the orbital Hall effect in a light metal Ti
Authors: Young-Gwan Choi, Daegeun Jo, Kyung-Hun Ko, Dongwook Go, Kyung-Han Kim, Hee Gyum Park, Changyoung Kim, Byoung-Chul Min, Gyung-Min Choi*, and Hyun-Woo Lee*
Journal: Nature, 619, 52 (2023)
Observation of the orbital Hall effect in a light metal Ti | Nature
39. Title: Spin current driven by ultrafast magnetization of FeRh
Authors: Kyuhwe Kang, Hiroki Omura, Daniel Yasudas, OukJae Lee, Kyung-Jin Lee, Hyun-Woo Lee, Tomoyasu Taniyama,
and Gyung-Min Choi*
Journal: Nature Communications, 14:3619 (2023)
38. Title: Thermal conductivity of yttria-stabilized zirconia thin films grown by plasma-enhanced atomic layer deposition
Authors: Sung Il Park, Byung Chan Yang, Jihyun Kim, Jaeyoon Ko, Gyung-Min Choi, Jihwan An*, and Jungwan Cho*
Journal: Journal of the American Ceramic Society, 1-10 (2022)
37. Title: Pseudo-hydrodynamic flow of quasiparticles in semimetal WTe2 at room temperature
Authors: Young-Gwan Choi, Manh-Ha Doan, Luu Ly Pham Ngoc, Junsu Lee, Gyung-Min Choi*, Maxim N. Chernodub*
Journal: Small, 2206604, 1-8 (2023)
2022
36. Title: Optical detection of charge accumulation in an electrically anisotropic semimetal of WTe2
Authors: Young-Gwan Choi, Mahn Ha Doan, and Gyung-Min Choi*
Journal: Journal of the Korea Physical Society, 81, 267-272 (2022)
35. Title: Optical thermometry of anisotropic semimetal of WTe2 using polarization‑sensitive microscopy
Authors: Young-Gwan Choi, Mahn Ha Doan, and Gyung-Min Choi*
Journal: Journal of the Korea Physical Society, 81, 121-125 (2022)
34. Title: Investigation of stiffness and damping constant of spin waves in a soft magnet Co100−xBx alloy
Authors: Young-Gwan Choi and Gyung-Min Choi*
Journal: Applied Physics Letters, 121, 012404 (2022)
2021
33. Title: Direct observation of spin accumulation and spin-orbit torque driven by Rashba-Edelstein effect in an InAs quantum-well layer
Authors: Won-Bin Lee, Seong Been Kim, Kyoung-Whan Kim, Kyung-Jin Lee, Hyun Cheol Koo*, and Gyung-Min Choi*
Journal: Physical Review B, 104, 184412 (2021)
32. Title: Time-resolved measurement of magnetization vectors driven by pulsed spin-orbit torque
Authors: Young-Gwan Choi and Gyung-Min Choi*
Journal: Applied Physics Letters, 119, 022404 (2021)
31. Title: Magnetization dynamics of antiferromagnetic metals of PtMn and IrMn driven by a pulsed spin-transfer torque
Authors: Kyuhwe Kang, Won-Bin Lee, Dong-Kyu Lee, Kyung-Jin Lee, and Gyung-Min Choi*
Journal: Applied Physics Letters, 112, 252407 (2021)
30. Title: Using Amorphous CoB Alloy as Transducer to Detect Acoustic Propagation and Heat Transport at Interface
Authors: Liu Jian and Gyung-Min Choi*
Journal: Applied Science, 11, 5155 (2021)
29. Title: Electron-Phonon Coupling Parameter of Ferromagnetic Metal Fe and Co
Authors: Kyuhwe Kang and Gyung-Min Choi*
Journal: Materials, 14, 2755 (2021)
28. Title: Magnetic Anisotropy and Damping Constant of Ferrimagnetic GdCo Alloy near Compensation Point
Authors: Sungjung Joo, Rekikua Sahilu Alemayehu, Jong-Guk Choi, Byong-Guk Park, and Gyung-Min Choi*
Journal: Materials, 14, 2604 (2021)
27. Title: The measurement of anisotropic thermal transport using time-resolved magnetooptical Kerr effect
Authors: Luu Ly Pham Ngoc, Kyuhwe Kang, and Gyung-Min Choi*
Journal: AIP Advances, 11, 025024 (2021)
2020
26. Title: Exchange stiffness and damping constants of spin waves in CoFeB films
Authors: Gyung-Min Choi*
Journal: Journal of Magnetism and Magnetic Materials, 516, 167335 (2020)
25. Title: Coherent spin waves driven by optical spin-orbit torque
Authors: Gyung-Min Choi*, Dong-Kyu Lee, Kyung-Jin Lee, and Hyun-Woo Lee
Journal: Physical Review B, 102, 014437 (2020)
24. Title: Thermal coupling parameters between electron, phonon, and magnon of Nickel
Authors: Kyuhwe Kang and Gyung-Min Choi*
Journal: Journal of Magnetism and Magnetic Materials, 514, 167156 (2020)
23. Title: Optical method of determining the spin diffusion length of ferromagnetic metals
Authors: Kyung-Hun Ko and Gyung-Min Choi*
Journal: Journal of Magnetism and Magnetic Materials, 510, 166945 (2020)
22. Title: Optical spin-orbit torque in heavy metal-ferromagnet heterostructures
Authors: Gyung-Min Choi*, Jung Hyun Oh, Dong-Kyu Lee, Seo-Won Lee, Kun Woo Kim, Mijin Lim, Byoung-Chul Min, Kyung-Jin Lee,
and Hyun-Woo Lee
Journal: Nature Communications, 11, 1482 (2020)
2019
21. Title: Thermal transport in layer-by-layer assembled polycrystalline graphene films
Authors: David Estrada*, Zuanyi Li1, Gyung-Min Choi, Simon N. Dunham, Andrey Serov, Jungchul Lee, Yifei Meng, Feifei Lian,
Ning C. Wang, Alondra Perez, Richard T. Haasch, Jian-Min Zuo, William P. King, John A. Rogers, David G. Cahill, and Eric Pop
Journal: npj 2D Materials and Applications, 3, 10 (2019)
2018
20. Title: The orbital moment and field-like torque driven by the inverse Faraday effect in metallic ferromagnets
Authors: Gyung-Min Choi*, Hee Gyum Park, Byoung-Chul Min
Journal: Journal of Magnetism and Magnetic Materials, 474, 132 (2018)
19. Title: Magneto-Optical Kerr Effect Driven by Spin Accumulation on Cu, Au, and Pt
Authors: Gyung-Min Choi*
Journal: Applied Science, 9, 1378 (2018)
18. Title: Ultrafast spin current generated by electron–magnon scattering in bulk of ferromagnets
Authors: Im-Hyuk Shin, Byoung-Chul Min, Byeong-Kwon Ju, and Gyung-Min Choi*
Journal: Japanese Journal of Applied Physics, 57, 090307 (2018)
17. Title: Laser-driven spin generation in the conduction bands of ferrimagnetic metals
Authors: Gyung-Min Choi* and Byoung-Chul Min
Journal: Physical Review B, 97, 014410 (2018)
2017
16. Title: Optical-helicity-driven magnetization dynamics in metallic ferromagnets
Authors: Gyung-Min Choi*, Andre Schleife, and David G. Cahill*
Journal: Nature Communications, 8, 15085 (2017)
15. Title: Picosecond Spin Seebeck Effect
Authors: Johannes Kimling, Gyung-Min Choi, Jack T. Brangham, Tristan Matalla-Wagner, Torsten Huebner, Timo Kuschel, Fengyuan Yang,
and David G. Cahill
Journal: Physical Review Letters, 118, 057201 (2017)
2015
14. Title: Thermal spin-transfer torque driven by the spin-dependent Seebeck effect in metallic spin-valves
Authors: Gyung-Min Choi*, Chul-Hyun Moon, Byoung-Chul Min, Kyung-Jin Lee, and David G. Cahill*
Journal: Nature Physics, 11, 576 (2015)
2014
13. Title: Measurement of the anisotropic thermal conductivity of molybdenum disulfide by the time-resolved magneto-optic Kerr effect
Authors: Jun Liu, Gyung-Min Choi, and David G. Cahill
Journal: Journal of Applied Physics, 116, 233107 (2014)
12. Title: Kerr rotation in Cu, Ag, and Au driven by spin accumulation and spin-orbit coupling
Authors: Gyung-Min Choi* and David G. Cahill
Journal: Physics Review B, 90, 214432 (2014)
11. Title: Spin current generated by thermally driven ultrafast demagnetization
Authors: Gyung-Min Choi, Byoung-Chul Min, Kyung-Jin Lee, and David G. Cahill*
Journal: Nature Communications, 10, 1038 (2014)
10. Title: Indirect heating of Pt by short-pulse laser irradiation of Au in a nanoscale Pt/Au bilayer
Authors: Gyung-Min Choi*, R. B. Wilson, and David G. Cahill
Journal: Physical Review B, 89, 064307 (2014)
2013
9. Title: Fabrication of Nano-Sized Magnetic Tunnel Junctions Using Lift-Off Process Assisted by Atomic Force Probe Tip
Authors: Ku Youl Jung, Byoung-Chul Min, Chiyui Ahn, Gyung-Min Choi, Il-Jae Shin, Seung-Young Park, Kungwon Rhie, and Kyung-Ho Shin
Journal: Journal of Nanoscience and Nanotechnology, 13, 6467 (2013)
8. Title: L10 ordering of FePtB layers by oxidation-induced stress of capping layer
Authors: Gyung-Min Choi, Byoung-Chul Min*, and Kyung-Ho Shin
Journal: Appl Phys A, 111, 389 (2013)
2012
7. Title: Perpendicular Magnetic Tunnel Junctions Having CoFeB/CoPt Alloy Layers
Authors: Gyung-Min Choi, Byoung-Chul Min, and Kyung-Ho Shin
Journal: IEEE Transactions on Magnetics, 48, 1130 (2012)
2011
6. Title: L10 Ordering of FePtB Films on a Thin MgO Layer
Authors: Gyung-Min Choi, Byoung-Chul Min, and Kyung-Ho Shin
Journal: Applied Physics Express, 4, 023001 (2011)
2010
5. Title: Perpendicular magnetic tunnel junctions with synthetic ferrimagnetic pinned layer
Authors: Gyung-Min Choi, Il-Jae Shin, Byoung-Chul Min, and Kyung-Ho Shin
Journal: Journal of Applied Physics, 108, 073913 (2010)
4. Title: FePdB layer for perpendicular magnetic tunnel junctions
Authors: Gyung-Min Choi, Byoung-Chul Min, and Kyung-Ho Shin
Journal: Applied Physics Letters, 97, 202503 (2010)
2009
3. Title: Substrate Biasing Effect during MgO Deposition in CoFeB/MgO/CoFeB MTJs
Authors: G. M. Choi, K. H. Shin, S. A. Seo, S. O. Kim, W. C. Lim, and T. D. Lee*
Journal: IEEE Transactions on Magnetics, 45, 2371 (2009)
2. Title: Comparison of Tunneling Characteristics in the MTJs of CoFeB/MgO/CoFeB with Lower and Higher Tunneling Magnetoresistance
Authors: G. M. Choi, K. H. Shin, S. A. Seo, W. C. Lim, and T. D. Lee
Journal: Journal of Magnetics, 14, 11 (2009)
2008
1. Title: Fabrication of Magnetic Tunnel Junctions With CoFeSi Heusler Alloy and MgO Crystalline Barrier
Authors: W. C. Lim, G. M. Choi, T. D. Lee, and S. A. Seo
Journal: IEEE Transactions on Magnetics, 44, 2595 (2008)
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